Last updated: June 2, 2025
Understanding the UV Index in Dali, China, is crucial for safeguarding your skin and overall health. As a popular destination with a Cwa climate, Dali experiences significant sun exposure throughout the year, especially during midday hours when UV levels can reach a staggering 11. Awareness of UV levels not only helps in preventing sunburn and skin damage but also promotes long-term wellness. With UV indices peaking between 10 AM and 2 PM, locals and visitors alike should stay informed and take necessary precautions to enjoy Dali's vibrant surroundings while protecting their skin from harmful UV rays.
The hourly UV Index reveals a sharp rise in sunlight intensity throughout the morning, starting at a mild 1 at 07:00. By 09:00, it climbs to 5, and by 11:00, it peaks at a striking 9. The highest levels occur during midday, with a maximum 11 reached from 12:00 to 13:00, indicating a very high risk of harm from unprotected sun exposure. As the afternoon progresses, the index gradually declines, settling back to 7 at 15:00 and further down to 1 by 19:00. For those enjoying outdoor activities, it’s crucial to stay sun-safe during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, indicating varying levels of sun exposure risk for residents and visitors. January and February present moderate exposure with UV Index values of 4 and 5 respectively, allowing roughly 30 minutes of sun exposure before the risk of burning increases. As spring approaches, March's UV Index climbs to 7 (high) with a reduced burn time of 25 minutes, leading into April's peak of 9 (very high), where just 15 minutes of sun can cause damage. The summer months, particularly May and June, reach an extreme level of 11, necessitating precautionary measures within just 10 minutes of sun exposure. Even in July and August, while slightly lower at 10, the risk remains very high, and sun protection is crucial. As fall sets in, September and October maintain a very high risk with an index of 8, allowing 15 minutes before risking burns. The year concludes with November and December returning to moderate levels of 5 and 3 respectively, enabling longer exposure times of 30 minutes once more. Visitors and residents are highly encouraged to adopt sun safety practices—using sunscreen, wearing protective clothing, and seeking shade, especially from March through October when UV levels are the most intense.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beijing UVI | 2 | 3 | 5 | 8 | 9 | 9 | 10 | 9 | 7 | 6 | 4 | 2 |
| Dali | 4 | 5 | 7 | 9 | 11 | 11 | 10 | 10 | 8 | 8 | 5 | 3 |
| Chengdu UVI | 5 | 6 | 8 | 10 | 12 | 11 | 11 | 10 | 11 | 8 | 6 | 4 |
| Shanghai UVI | 5 | 6 | 8 | 10 | 10 | 11 | 12 | 11 | 11 | 8 | 6 | 4 |
| Guangzhou UVI | 7 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 9 | 7 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |